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As a sailor you should know about local winds. The cause of these winds is difference in temperature; cold air is heavier than warm air. The most popular of these local winds is sea breeze. Warm air over land rises...And is replaced by cooler air sinking over ocean. At night opposite happens. The land quickly loses its heat at night and oftenfalls to a lower temperature than water. This results in a light offshore evening wind. On a lake or river, warm air can rise at edges to be replaced by cool air over water. This can result in a nice breeze for sailing.
Forcast for a Typical Sea Breeze Day: Morning Very Light Winds -No Weather Systems Near -Clear Sky -High Temperatures But Cooler Near Shore
Afternoon: Wind coming from water starting Midday -Cumulus Clouds over land -Clear over water- Winds Speeds 8 - 12 knots
Evening: Winds Decreasing as sun slips over horizon.
Sailing Terms
Amidships- middle of boat.
Backwind- wind flowing off sail.
Close Hauled- one of points of sail; sailing as close to wind as possible.
Dead Astern- straight behind
Flaking- Folding sail.
Glide Zone- distance it take a boat to stop after turningb head to wind.
Heave To- to head boat into wind in order to slow it down or stop it.
Linda Cullum is from Cape Cod, MA, with a second home in Vermont. She is the author of Learn to Sail! with Multimedia! an Interactive Sailing training CDROM which teaches all aspects of Sailing incliding Knots, Piloting, Rules of the Road, Weather with digital video from Sail Magazine, narration, animation and quizzes. Visit her site at http://learntosail.net Wishing you the best in your sailing endeavors!